What is a Function Hierarchy Diagram?
A Function Hierarchy diagram is a diagram that shows all the functions involved in your system in a hierarchical manner like in an organizational chart. Unlike the process model or the data flow diagram, it does not show the organizational units involved in the functions, the datastores or the data flows. It just specifies the Parent Function (the function at the very top) and the sub or child functions underneath it. Each child function can also be broken down into further sub functions. A Narrative of the Functions involved in the Function Hierarchy Diagram Since you have already created a dataflow diagram with four processes and have further decomposed those processes using the Dataflow Diagrammer and the Process Modeller, you will notice that Oracle has automatically generated for you a function hierarchy diagram with the above mentioned processes. However, using the Function Hierarchy Diagrammer, you can further decompose the existing functions showing a modified hierarchy. • In t
